Morrison-Knudsen (MKCX) TE50-4S 5001 at a railroad industry trade show on the the site of Illinois Central's Central Station, Chicago, Illinois, September, 1979, photo by Chuck Zeiler. Built in September 1954 as UP GP9 278 (c/n 19875), it was sold to Morrison Knudsen in February 1979 and rebuilt in July 1979 as MK 5001. It was powered by a Sulzer (Swiss) Marine six-cylinder Model 6ASL25/30 diesel prime mover producing 1500 horsepower. It was later sold as Morristown & Erie becoming ME 22.

Train 270 rolls past the Morrison Knudsen plant at Hornell. Once Erie and ELs sprawling facility here, it now makes and rebuilds transit cars for a number of operators, including NYCTA, whose cars are a common sight on OIBU and BUOI.